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Taiwan Semiconductor Corporation P6SMB15H
- Part No.:
- P6SMB15H
- Manufacturer:
- Taiwan Semiconductor Corporation
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB15H.pdf
- Description:
- 600W, 15V, 10%, UNIDIRECTIONAL,
- Quantity:
- Payment:
- Shipping:
Inventory:3,195
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Product details
Overview
P6SMB15H from Taiwan Semiconductor is a unidirectional 600W surface-mount transient voltage suppressor (TVS) diode with a breakdown voltage range of 13.5–16.5 V, clamping voltage of 22.0 V at 28 A peak pulse current, and stand-off voltage of 12.1 V - designed for automotive-grade ESD and load-dump protection in power supply rails and interface lines.
For engineers reviewing the P6SMB15H datasheet, P6SMB15H pinout, P6SMB15H application, or P6SMB15H equivalent, key selection criteria include its AEC-Q101 qualification, DO-214AA (SMB) package compatibility, 1.0 mA test current specification, <1 μA leakage at 12.1 V, and ISO 7637-2 Pulse 1/2a/2b/3a/3b compliance for automotive transients.
Technical Context
The P6SMB15H operates as a unidirectional avalanche diode, triggering when reverse voltage exceeds its minimum breakdown threshold of 13.5 V under 1.0 mA test current. Its glass-passivated junction ensures stable VBR drift (0.084 %/°C) and low leakage (<1 μA at VWM), enabling reliable overvoltage clamping in 10/1000 μs surge events.
Thermally, it features a junction-to-ambient thermal resistance of 55 °C/W and maximum junction temperature of +150 °C, supporting operation in under-hood automotive environments. It meets JESD201 Class 2 whisker resistance and J-STD-020 Moisture Sensitivity Level 1 - suitable for lead-free reflow without preconditioning.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 13.5 V / 16.5 V - defines guaranteed avalanche conduction onset range at 1.0 mA test current |
| VWM | 12.1 V - maximum continuous reverse operating voltage before significant leakage begins |
| VC @ IPPM | 22.0 V at 28 A - clamped voltage during 10/1000 μs surge, limiting downstream IC stress |
| PPPSM | 600 W - non-repetitive peak pulse power handling per single 10/1000 μs waveform |
| IR @ VWM | <1 μA - ultra-low reverse leakage ensures minimal standby power loss in battery-critical systems |
| TJ max | +150 °C - enables deployment in high-temperature automotive engine control units and lighting modules |
| Package | DO-214AA (SMB) - industry-standard surface-mount outline with 0.090 g mass and matte tin-plated leads |
Pinout & Package
DO-214AA (SMB) package: molded plastic case with cathode band marking; polarity-sensitive unidirectional configuration; terminals are matte tin-plated for J-STD-002 solderability.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current input / Reverse voltage reference | Connected to system ground or low-side return path; defines conduction direction during clamping |
| Cathode | Clamping output / Surge sink node | Connected to protected line (e.g., 12 V rail); conducts surge current to ground when VREV > VBR |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive electronics per stress-test requirements including temperature cycling, HTRB, and ESD |
| Glass passivated junction | Ensures long-term VBR stability and low parameter drift across 150 °C operating range |
| ISO 7637-2 compliance | Withstands Pulse 1 (inductive load dump), Pulse 2a/2b (switching transients), and Pulse 3a/3b (line impedance coupling) |
| Fast response time | <1.0 ps rise time from 0 V to VBR(min), enabling sub-nanosecond suppression of ESD and fast transients |
| Moisture sensitivity level 1 | No floor-life limitation or baking required prior to SMT assembly - reduces manufacturing overhead |
Applications
| Automotive Power Rail Protection | LED Lighting Driver Input Protection |
|---|---|
Use Scenario: Protecting 12 V battery-fed ECUs against load-dump spikes up to 35 V and ISO 7637-2 Pulse 1 transients. IC Role / Device Role / Timing Role: Unidirectional TVS diode placed between power rail and chassis ground to clamp surges before they reach LDOs or microcontrollers. Use Value: Limits peak rail voltage to 22.0 V during 28 A transients, preventing latch-up or permanent damage to downstream 3.3 V/5 V logic. | Use Scenario: Safeguarding constant-current LED drivers in automotive headlamps from ignition-induced switching noise and ESD. IC Role / Device Role / Timing Role: Standoff protector on driver input stage; absorbs repetitive 10/1000 μs pulses without degradation. Use Value: Maintains <1 μA leakage at 12.1 V, avoiding false triggering or efficiency loss in always-on lighting systems. |
| Industrial Sensor Interface Protection | USB/UART Line Transient Suppression |
Use Scenario: Shielding analog sensor front-ends (e.g., pressure, temperature) connected to 24 V PLC I/O modules from field-wiring induced surges. IC Role / Device Role / Timing Role: Low-capacitance TVS on signal conditioning input; leverages fast <1 ps response to suppress nanosecond EFT bursts. Use Value: Clamps transients to ≤22.0 V while adding negligible loading (<1 μA) to high-impedance sensor bridges. | Use Scenario: Adding robustness to isolated USB or UART communication lines exposed to cable discharge events in factory automation equipment. IC Role / Device Role / Timing Role: Bidirectional protection not applicable - P6SMB15H used only on VCC or shield lines where unidirectional clamping suffices. Use Value: Provides 600 W surge rating with DO-214AA footprint - fits tight board space without requiring discrete capacitor filtering. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ15A | Same DO-214AC (SMA) package; 600 W rating; bidirectional variant available; VBR = 16.7–18.5 V; higher VC = 24.4 V at 24.4 A | Higher clamping voltage reduces margin for 15 V-rated ICs; SMA package has larger footprint than SMB | Select SMAJ15A only if bidirectional capability or legacy SMA layout reuse is required |
| 1.5SMC15A | DO-214AB (SMC) package; 1500 W rating; VBR = 16.7–18.5 V; VC = 24.4 V at 61.5 A; higher thermal mass | Over-specified power handling increases cost and board area; unsuitable for space-constrained SMB layouts | Choose 1.5SMC15A only for high-energy industrial surge environments exceeding 600 W |
Compared with SMAJ15A and 1.5SMC15A, the P6SMB15H delivers optimal balance of compact DO-214AA footprint, precise 13.5–16.5 V breakdown targeting 12 V systems, and 22.0 V clamping - making it the preferred choice for AEC-Q101-compliant automotive PCBs where layout density and voltage margin are critical.
Availability
P6SMB15H is available at Aetrix Electronics and suitable for automotive ECU protection, LED driver input safeguarding, and industrial sensor interface transient suppression requiring stable component supply and full traceability.
Supply support for P6SMB15H includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Taiwan Semiconductor Corporation (TSC) is a vertically integrated semiconductor manufacturer specializing in discrete power devices, TVS diodes, rectifiers, and MOSFETs - with global distribution and AEC-Q101 validation capabilities.
The P6SMB series belongs to TSC's automotive-grade transient suppression product line, engineered specifically for ISO 7637-2 compliance and under-hood reliability in 12 V/24 V vehicle electrical architectures.
FAQ
What is the polarity configuration of the P6SMB15H?
The P6SMB15H is a unidirectional TVS diode with cathode-band marking indicating the cathode terminal. It conducts only when reverse-biased above its breakdown voltage (13.5–16.5 V), making it suitable for DC power rail protection where polarity is fixed - unlike bidirectional variants that require CH or CAH suffixes.
Does the P6SMB15H meet automotive qualification standards?
Yes, the P6SMB15H is AEC-Q101 qualified and compliant with ISO 7637-2 Pulse 1, 2a, 2b, 3a, and 3b transient waveforms. Its glass-passivated junction, JESD201 Class 2 whisker resistance, and MSL Level 1 rating confirm suitability for automotive under-hood and body-control module applications.
What is the maximum clamping voltage of the P6SMB15H during a surge event?
The P6SMB15H has a maximum clamping voltage (VC) of 22.0 V at 28 A peak pulse current under the standard 10/1000 μs waveform. This value is measured per ANSI/IEEE C62.35 and guarantees safe voltage limiting for 15 V-tolerant downstream components during transient events.
Can the P6SMB15H be used in bidirectional signal line protection?
No - the P6SMB15H is unidirectional only. For bidirectional protection (e.g., data lines), TSC offers P6SMB15AH (with "A" suffix) or variants with CH/CAH suffixes. Using P6SMB15H on AC or reversible signals risks forward conduction and failure; always verify polarity alignment in schematic design.
What is the thermal resistance profile of the P6SMB15H?
The P6SMB15H has a junction-to-case thermal resistance (RθJC) of 10 °C/W and junction-to-ambient resistance (RθJA) of 55 °C/W at 25 °C ambient. These values assume standard PCB copper pour; actual performance depends on pad layout and airflow - derating is required above 25 °C per Figure 2 in the datasheet.
P6SMB15H Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Taiwan Semiconductor Corporation
- Package/Case:
- DO-214AA, SMB
- Series:
- P6SMB
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 12.1V
- Voltage - Breakdown (Min):
- 13.5V
- Voltage - Clamping (Max) @ Ipp:
- 22V
- Current - Peak Pulse (10/1000µs):
- 28A
- Power - Peak Pulse:
- 600W
- Power Line Protection:
- No
- Applications:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMB)
P6SMB15H FAQ
1.How can I place an order for P6SMB15H through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB15H on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for P6SMB15H reliable?
The price and inventory of P6SMB15H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6SMB15H is usually 5 days.
3.What payment methods are accepted for P6SMB15H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB15H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB15H?
P6SMB15H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB15H order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for P6SMB15H?
For technical support, including P6SMB15H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB15H requirements.
6.How does Aetrix verify that P6SMB15H is sourced from the original manufacturer or authorized distributors?
All P6SMB15H products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that P6SMB15H meets industry standards.
7.What is the process for return or replacement of P6SMB15H?
All P6SMB15H units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB15H, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The P6SMB15H part is unused and in its original packaging.
Return procedure for P6SMB15H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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